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LT1940 Datasheet(PDF) 2 Page - Linear Technology |
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LT1940 Datasheet(HTML) 2 Page - Linear Technology |
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2 / 30 page  LT3510 2 3510fe ELECTRICAL CHARACTERISTICS ABSOLUTE MAXIMUM RATINGS VIN1/2, SHDN, PG1/2 ...................................... 25V/–0.3V SW1/2....................................................................VIN1/2 BST1/2 ........................................................... 35V/–0.3V BST1/2 Pins Above SW1/2........................................25V IND1/2 .....................................................................±4A VOUT1/2........................................................ VIN1/2/–0.3V FB1/2, SS1/2, RT/SYNC............................................5.5V VC1/2 ......................................................................±1mA Operating Junction Temperature Range LT3510EFE (Notes 2, 8) ..................... –40°C to 125°C LT3510IFE (Notes 2, 8) ...................... –40°C to 125°C Storage Temperature Range................... –65°C to 150°C Lead Temperature (Soldering, 10 sec) .................. 300°C (Note 1) The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TJ = 25°C. VVIN1/2 = 15V, VBST1/2 = open, VRT/SYNC = 2V, VVOUT1/2 = open, unless otherwise specified. PARAMETER CONDITIONS MIN TYP MAX UNITS SHDN Threshold VOUT1/2 = 0V, RT/SYNC = 133k l 1.23 1.28 1.37 V SHDN Input Current VSHDN = 1.375V VSHDN = 1.225V 7 2 10 3 13 5 μA μA Minimum Input Voltage Ch 1 (Note 3) VFB1/2 = 0V, VVOUT1/2 = 0V, VIND1/2 = 0V, RT/SYNC = 133k 2.8 3 V Minimum Input Voltage Ch 2 VFB1/2 = 0V, VVOUT1/2 = 0V, VIND1/2 = 0V 2.8 3 V Supply Shutdown Current Ch 1 VSHDN = 0V l 930 μA Supply Shutdown Current Ch 2 VSHDN = 0V 0 5 μA Supply Quiescent Current Ch 1 VFB1/2 = 0.9V 3.5 5 mA Supply Quiescent Current Ch 2 VFB1/2 = 0.9V 200 500 μA Feedback Voltage Ch 1/2 VVC1/2 = 1V l 0.784 0.8 0.816 V PIN CONFIGURATION FE PACKAGE 20-LEAD PLASTIC TSSOP 1 2 3 4 5 6 7 8 9 10 TOP VIEW 20 19 18 17 16 15 14 13 12 11 VIN1 SW1 IND1 VOUT1 PG1 PG2 VOUT2 IND2 SW2 VIN2 BST1 SS/TRACK1 VC1 FB1 RT/SYNC SHDN FB2 VC2 SS/TRACK2 BST2 21 TJMAX = 125°C, θJA = 45°C/W, θJC(PAD) = 10°C/W EXPOSED PAD (PIN 21) IS GND, MUST BE SOLDERED TO PCB ORDER INFORMATION LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LT3510EFE#PBF LT3510EFE#TRPBF LT3510FE 20-Lead TSSOP –40°C to 125°C LT3510IFE#PBF LT3510IFE#TRPBF LT3510FE 20-Lead TSSOP –40°C to 125°C LEAD BASED FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LT3510EFE LT3510EFE#TR LT3510FE 20-Lead TSSOP –40°C to 125°C LT3510IFE LT3510IFE#TR LT3510FE 20-Lead TSSOP –40°C to 125°C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/ |
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